did you check all fuses? yet? in both boxes?
first off the schematic (516pages) is here.
so you look any time and see why.
ill direct you to the pages.
the radio too can be complex. ext. amps. ill assume its 100 % DEAD
ill do radio dont play in run pos. of ign. sw., (easier)
there are 3 Cherokees, gas, desiel and export. so> and ENGINE! size
so every page is repeated 3 time. you sort that
6 fuses involved here, just for the freaking radio
but fuse 17 is the key fuse. see that. and the marking
RUN-ACC A31 , in JB (bad A31 power feed is the prob)
fuse 17 marked, X12-16rd/wt
fuse 18 kills windows. and is A31 feed too.. hummmmm
are both fuses blown, might check that..?????
so we look now at A31 (fuse 17 and 18 measure 0ohms with meter)
A31 goes to the Ignition switch, USA RHD GAS car, is most
complex and the first section of the switch has a pin3 to pin4
jumper. this jumper allows A31 power feed to reach the things
you find are dead. see page 8w-10-15 or pdf 35
see pdf page 240 for radio wires.
so what is wrong, i dont know,
but my voltmeter will tell min in 1min flat
got 12v on the A32 feed?
yes, then F17 -18 blown.
if not the jumper is bad in the ign. switch